Datasheet

Chapter 2 External Signal Description
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Freescale Semiconductor 25
Figure 2-3. 24-Pin Packages
2.2 Recommended System Connections
Figure 2-4 shows pin connections that are common to almost all MC9S08QG8/4 application systems.
MC9S08QG8/4
PTA4/ACMP0/BKGD/MS
1
2
3
4
5
6
18
17
16
15
14
13
789101112
24 23 22 21 20 19
V
DD
V
SS
PTB7/SCL/EXTAL
PTB6/SDA/XTAL
PTB5/TPMCH1/SS
NC NC NC
PTB4/MISO
NC
PTB3/KBIP7/MOSI/ADP7
PTB2/KBIP6/SPSCK/ADP6
PTA1/KBIP1/ADP1/ACMP‚
PTA2/KBIP2/SDA/ADP2
PTA3/KBIP3/SCL/ADP3
PTB0/KBIP4/RxD/ADP4
PTB1/KBIP5/TxD/ADP5
NC PTA5/IRQ/TCLK/RESET NC NC NC PTA0/KBIP0/TPMCH0/ADP0/ACMP+
Pin 1 indicator